Complex impedance measurements of calorimeters and bolometers: Correction for stray impedances

Mark. A. Lindeman, Kathleen A. Barger, Donald E. Brandl, S. Gwynne Crowder, Lindsay Rocks, Dan McCammon

doi:10.1063/1.2723066

Complex impedance measurements of calorimeters and bolometers: Correction for stray impedances

DOI PDF 被引用文献1件

Mark. A. Lindeman

University of Wisconsin , Madison, Wisconsin 53706
Kathleen A. Barger

University of Wisconsin , Madison, Wisconsin 53706
Donald E. Brandl

University of Wisconsin , Madison, Wisconsin 53706
S. Gwynne Crowder

University of Wisconsin , Madison, Wisconsin 53706
Lindsay Rocks

University of Wisconsin , Madison, Wisconsin 53706
Dan McCammon

University of Wisconsin , Madison, Wisconsin 53706

説明

<jats:p>Impedance measurements provide a useful probe of the physics of bolometers and calorimeters. We describe a method for measuring the complex impedance of these devices. In previous work, stray impedances and readout electronics of the measurement apparatus have resulted in artifacts in the impedance data. The technique allows experimenters to find an independent Thevenin or Norton equivalent circuit for each frequency. This method allows experimenters to easily isolate the device impedance from the effects of parasitic impedances and frequency dependent gains in amplifiers.</jats:p>